13
Penjelasan dengan langkah-langkah:
(a + b) (a - b) = a² - b²
maka
(2a+3b) (2a-3b) = (2a)² - (3b)²
= 4a² - 9b²
4a² - 9b² = pa² - qb²
maka p = 4, q = 9
p + q = 4 + 9 = 13
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Verified answer
13
Penjelasan dengan langkah-langkah:
(a + b) (a - b) = a² - b²
maka
(2a+3b) (2a-3b) = (2a)² - (3b)²
= 4a² - 9b²
maka
4a² - 9b² = pa² - qb²
maka p = 4, q = 9
p + q = 4 + 9 = 13